Three db bandwidth marker — Free Electronics Illustration | GPAI | GPAI

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Three db bandwidth marker — Free Electronics Illustration | GPAI | GPAI

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Three db bandwidth marker

Three db bandwidth marker

Electronics

Three db bandwidth marker

Clean frequency-axis annotation for a bandpass response showing the 3-dB bandwidth between two cutoff frequencies. Two vertical reference ticks or short lines mark the cutoff points at ω1 and ω2, corresponding to where the magnitude has fallen to 0.707 of the peak. A horizontal double-headed arrow or bracket spans between the two markers and is labeled “3 dB bandwidth” or “3 dB.” Optionally, a horizontal reference line slightly below the response peak intersects the curve at the two cutoff points, reinforcing the bandwidth measurement.

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